630402 has 16 divisors (see below), whose sum is σ = 1304640. Its totient is φ = 202832.

The previous prime is 630391. The next prime is 630433. The reversal of 630402 is 204036.

It is an unprimeable number.

630402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1638 + ... + 1985.

It is an arithmetic number, because the mean of its divisors is an integer number (81540).

2⁶³⁰⁴⁰² is an apocalyptic number.

630402 is an abundant number, since it is smaller than the sum of its proper divisors (674238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630402 is a wasteful number, since it uses less digits than its factorization.

630402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 630402 is about 793.9785891320. The cubic root of 630402 is about 85.7444187705.

Adding to 630402 its reverse (204036), we get a palindrome (834438).

The spelling of 630402 in words is "six hundred thirty thousand, four hundred two".